Lichen Planus Flashcards by Georgia Leggett

Aetiology of lichen planus

Idiopathic
Possibly AI involvement/ Hep C
T cells induce apoptosis of Keratinocytes

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Sites affected by Lichen Planus

Favours flexors + extremities
Wrists
Ankles
Small of back 
Mouth
Genitalia

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6 features of lichen planus

Papular
Planar- Flat topped
Polished- shiny
Pruritic
Polygonal/ pigmented
Purple- Violaceous

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Tx for lichen planus

Clobetasol/ Betamethasone TOP

Antihistamines to reduce itch

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Describe oral presentation of lichen planus

Lacy, reticulate streaks on cheeks, gums + lips

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Describe the surface of lesions in lichen planus

Fine network of dots/ lines = Wickham’s striae

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Lichen Planus Flashcards